import os
files = os.listdir('E:\\')
if (any(name.endswith('.py') for name in files)):
    print('There be python!')
else:
    print('Sorry, no python.')

s = ('ACME', 50, 123.45)
print(','.join(str(x) for x in s))

portfolio = [
    {'name':'GOOG', 'shares': 50},
    {'name':'YHOO', 'shares': 75},
    {'name':'AOL', 'shares': 20},
    {'name':'SCOX', 'shares': 65}
]

min_shares = min(n['shares'] for n in portfolio)
print(min_shares)
